CVE-2026-1184

GitLab has remediated an issue in GitLab EE affecting all versions from 11.9 before 18.9.7, 18.10 before 18.10.6, and 18.11 before 18.11.3 that could have allowed an unauthenticated user to cause denial of service by uploading a specially crafted file due to improper validation.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/	Release Notes
https://gitlab.com/gitlab-org/gitlab/-/work_items/586634	Not Applicable
https://hackerone.com/reports/3515842	Permissions Required

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
	cpe:2.3:a:gitlab:gitlab:::::enterprise:::*

History

16 May 2026, 03:37

Type	Values Removed	Values Added
CPE		cpe:2.3:a:gitlab:gitlab:::::enterprise:::*
References	~~() https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ -~~	() https://about.gitlab.com/releases/2026/05/13/patch-release-gitlab-18-11-3-released/ - Release Notes
References	~~() https://gitlab.com/gitlab-org/gitlab/-/work_items/586634 -~~	() https://gitlab.com/gitlab-org/gitlab/-/work_items/586634 - Not Applicable
References	~~() https://hackerone.com/reports/3515842 -~~	() https://hackerone.com/reports/3515842 - Permissions Required
First Time		Gitlab gitlab Gitlab

14 May 2026, 06:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-14 06:16

Updated : 2026-05-16 03:37

NVD link : CVE-2026-1184

Mitre link : CVE-2026-1184

CVE.ORG link : CVE-2026-1184

JSON object : View

Products Affected

gitlab

gitlab

CWE

CWE-502

Deserialization of Untrusted Data

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